Determination of QCD phase diagram from the imaginary chemical potential region

Details Determination of QCD phase diagram from the imaginary chemical potential region Determination of QCD phase diagram from the imaginary chemical potential region

2009-02-03

arxiv.org/abs/0902.0487v1

Phys.Rev.D79: 096001, 2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 12 figures

Scientific paper

10.1103/PhysRevD.79.096001

We test the reliability of the the Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model, comparing the model result with the lattice data at nonzero imaginary chemical potential. The PNJL model with the vector-type four-quark and scalar-type eight-quark interactions reproduces the lattice data on the pseudocritical temperatures of the deconfinement and chiral phase transitions. The QCD phase diagram in the real chemical potential region is predicted by the PNJL model. The critical endpoint survives, even if the vector-type four-quark interaction is taken into account.

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